Rosario "Roy" Paci (born 16September 1969) is an Italian composer, singer, and trumpet player. Music and career thumbnail|left|Paci in 2011 Born in Augusta, Sicily, Paci started playing the piano as
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8de48a804250130c65411c1afa76a4b774b45df14163c77de4a1cdfe974117. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10809a42-b9c7-4b5a-9c2d-f00da6305084.json and https://artists.proofprofile.net/proofs/artist/10809a42-b9c7-4b5a-9c2d-f00da6305084.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb304ef48d0c0d41b16ef8669b5ef823ace9077f0985c3b13547df0b7014a7e61. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e5c7477b71cb0f8c80080aa77c17b2dc7997572c4eb5bf0323a56aa15680f8. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa75ca8c63e2b622e2d891bb24aed2f5fc8e59fb6787d1195a7134d14f59e2ed. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288f497e83dabcb5c2090d53a75858260166b2b3b87ec773993ed96f20878e14. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e49ca11d12ed8febd1af88b46c0d1456d6c25f71ce8a09b063903f13c8adb45. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1633e8839564398bf45a82c544a099c653760bb592e716bf49bfabf778b97eee. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e57d637a33a64840c6cdc8e8332a992368dc2a9084a1fd5d1c7aa9a71d0607. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3016543d649ac005f8a6647eed5d2d718d411386eb0412f792d6526bfb8a109. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0c5c86d997a4e7429358dd6fd94388ca791db7bdb64c7d902c216bdfea6689. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8418a28dfae0e661a6e021bb90c9738b8eb3717f68396491db3b289584670050. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c3f57470ba6d186571acdab75fd821d62f4290a3aebb1d53a5d1f6abadaeba. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400022.
Superreggae Stereomambo (2005 Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d3a5c881248cf1d9f658a77f4641b7fbc403708b0990a7ced34786c6b12fe5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f16afbdb7f8b2b0935bdccf295d34c832f241e8eb7be5799ebc68deaac76ef. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde44e1e6a4d8e3aa2ed8c06ac0bc2c46473740ab675d843b2b73b9b61f5377b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169e13ed638ad79e155acf8e0da358297e9ec8552dded8bbae3034d30203a9b5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b278a568258b3483691693cd302f7a608d31a42e4ea7ec33ce5177d0207f04. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204f84f677edda0ca3afdec247a0a5a0d252f6b2fa6d8d24f7d57183a5298edf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695b82121b75572d7832e625f190be13e2ed8f141a1ffd9a304242f41540a370. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19401025e627802abe537271edfa13f62d768dc1b2cd82512c7df1dad413e61. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138f672844551364013b014e2f589c029f6feab1a13715b12dc635de53d0adfd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22c1bfb3359810f89a1e528e5fdf66a32470f4e4dd57f831da27b5726bca980. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f124058c27fb8f71ef02b64a12bf066553fb9a92562589adfd12c3d2f06946. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909edf17dc62155719df44a5dd97e12e69ddd941743765ac6b1f2b8121d871ee. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0254436f4817969304f63ad830b87e7ae1c5402779f67ce9ba18ee223385d66. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920e4630d6b30cdfaaf3205fd6decdba24922c44627ad84a6b7c344b83bb318a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61e3d786641adbfa210b32e36c9c929912f6c550247262a65372109f286a209. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8820895f321f6ab814c02fcad131114904c27f3fefd17a0b3703d72ab3147b6a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde44e1e6a4d8e3aa2ed8c06ac0bc2c46473740ab675d843b2b73b9b61f5377b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe3cfe86c35d9ff21bcd9c5177f09f1270ac389ff9fb2f44ecdeeab4a03ac53. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS141800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5786fa8050d74af42b92c31aa223e3dddf0047bbb8f0492878d234815bf9a1b3. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS142400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4980b443d280c56538420c35d9e728bbedd572c598dde1a0cd0f3e42a83c98. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS142500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a3b78a21d0237eb0e96cf90f7f085b76b70fab556cab213d24e1302abd09e6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IT2G32100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5139f457456da5e7b1b4268818762873dff99c2acda68a379c82d4a6a709f5c7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITSXH2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fb4e8b4cf471efefb254e68cd5c8c2330f1ff5a09afc94663c9ceddd021efa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IT2WZ1700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda08b62d32003e6a595879d846e53fcc19c9729da0cfffcb4c942fe8f77e1884. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS442400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedca6a5e2cd7c76b512c9495e60a2adcdd751e286f2de25df738015afb7bbc84. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITS442300002.
Iper Chimera - Jolly Mare & Roy Paci Remake
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe618fef3d5741214e59c8566c3198267f32eced09bad86b5793803b8553a0e4b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITL771903108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747bf718933977235648a9f733cae9b9df328c9e1c03b5dd99478337117d38df. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITT151000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c1bc50e1729279280d9a4a8fce2e27c1c382de50b40509a45edb922dfc373b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITL751400227.